Authorities are looking for a suspect who threw urine at a bus driver in the Bronx.

The NYPD says the male suspect was with a 5-year-old boy when he boarded the BX12 bus at White Plains Road and Pelham Parkway on Oct. 1 at 5:15 p.m. Police say the suspect had an argument with the driver, then threw a vial of urine in the driver's face when the bus arrived at Pelham Bay Station.